Poor experience resulting in loss of data (and faith)

I took my phone in for a screen repair at the Somerset West branch in the SW Mall.

After booking my phone in, the clerk captured my phone's pin so that the technicians would be able to log into my phone without having to flash it as it had almost a year's worth of photos and other personal documents on there.

After being told it would take +- 10 working days (booked it in on the 30th of August) i started to follow up after the 12th of September i was advised they were still waiting on parts. I again followed up on the 20th of September and loan behold, they were still waiting on parts.

Shortly after that call, on the same day, i was then called back to say that my phone was suddenly ready for collection. I was very surprised at the sudden change in status merely a few hours after my follow up call. When i asked how this could have happened, i was advised that another customer rejected a quote, so they could use that clients screen on my phone.

Finally when i went to collect the phone on Sunday the 23rd of September, yup you guessed it, my phone had been flashed and i had lost allllllll my photos and other personal info on it.

When i queried this (as the note of my pin was made on the booking form invoice which i still have a copy of) i was given a "what would you like me to do about it".

This is my third generation Huawei phone i've now had and after that level of service was received i am bitterly disappointed and would like to hear some sort of feedback from higher management on the matter asap please as the customer relations was seriously damaged after this, what i can simply describe as, terrible experience.

Regards, Warren